Glycyl-L-threonine

Yu N, Merz KM Jr (2004) Theoretical study of the electron density distributions of glycyl-L-threonine dihydrate. Molecular Physics 102(23-24) 2545-2557... 

Figure 9.3 shows spectra of glycyl-L-threonine at room temperature (298°K top) and at about 110°K (bottom). The region below 1000 cm is definitely improved at liquid-nitrogen temperature. Several bands observed in this region were not visible in the spectrum recorded at room temperature. 

Fig. 9.3. The partial infrared spectrum of a Nujol mull of glycyl-L-threonine at room temperature (upper) and at about 110°K. (lower). (Feairheller et al., 1969.)...

Dittrich et al extracted the charge density of glycyl-L-threonine dihydrate from a synchrotron data set collected at 100 K. The topology of the experimental density is analysed mid compared with the topology obtained experimentally for the constituting amino acids and to that derived from HF calculations on the isolated molecule. All covalent and HB BCPs as well as the Laplacian CPs were... 

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